Each pair of analog pins are shorted together.
Measure the resistance, step response through each pair to characterise the analog mux.
| # | Input | Output | Bidirectional | 
|---|---|---|---|
| 0 | |||
| 1 | |||
| 2 | |||
| 3 | |||
| 4 | |||
| 5 | |||
| 6 | |||
| 7 | 
| ua | analog | Description | 
|---|---|---|
| 0 | 5 | connected to 1 | 
| 1 | 0 | connected to 0 | 
| 2 | 4 | connected to 3 | 
| 3 | 1 | connected to 2 | 
| 4 | 3 | connected to 5 | 
| 5 | 2 | connected to 4 |